diff --git a/src/gausskernel/dbmind/tools/app/diagnosis/query/slow_sql/significance_detection/__init__.py b/src/gausskernel/dbmind/tools/app/diagnosis/query/slow_sql/significance_detection/__init__.py
index 214efbabf..14eaa2425 100644
--- a/src/gausskernel/dbmind/tools/app/diagnosis/query/slow_sql/significance_detection/__init__.py
+++ b/src/gausskernel/dbmind/tools/app/diagnosis/query/slow_sql/significance_detection/__init__.py
@@ -11,6 +11,13 @@
 # MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 # See the Mulan PSL v2 for more details.
 
+#function name: detect
+#description: if the method is "bool" type, then call the functions sum_detect、avg_detect、ks_detect to diagnose errors
+#These functions are in the parent slow_sql/significance_detection
+#arguments: data1(array), data2(array), method
+#return value: bool type
+#date: 2022/8/2
+#contact: 1865997821
 
 def detect(data1, data2, method='bool', threshold=0.01, p_value=0.5):
     if method == 'bool':